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March 26, 1929. 5. BRAND 1,706,726

CASH REGISTER Original Filed Feb. 2, 1924 2 Sheets-Sheet 1 5. BRAND March 26, I929.

CASH REGISTER Original Filed Feb. 2, 1924 2 Sheets-Sheet Patented Mar. 26, 1929.

UNITED STATES PATENT OFFICE.

SAMUEL BRAND, OF DAYTON, OHIO, ASSIGNOR. BY MESNE ASSIGNMENTS, TO THE NATIONAL CASH REGISTER COMPANY, OF DAYTON, OHIO, A. CORPORATION 01? MARYLAND.

Original application filed February 2, 1924, Serial No. 690,239. Divided and this application filed July 8,1925. Serial no. 42,233.

This invention relates to cash registers, and more particularly to the transfer mechanism thereof. This application forms a division of a co-pending application of Samuel Brand, Serial No. 690,239, filed February 2, 1924.

The principal object of this invention 1s to produce a novel transfer mechanism, for use with cash registers or like machines.

With this and incidental objects in view, the invention consists of certain novel features of construction, and combinations of parts, the essential elements of which are set forth in appended claims and a preferred form or embodiment of which is hereinafter described, with reference to the drawings which accompany and form part of this specilieation.

()f said drawings:

Figure 1 is a vertical section through the machine, taken just to the right of one of the amount banks of keys, and shows the type of differential mechanism used with the present invention.

Figure 2 is an enlarged detail view of the transfer mechanism of the machine, with the parts in the position which they occupy when no transfer has been made.

Figure 3 is a detail enlarged sectional view of the transfer mechanism, with the parts in the positions which they occupy when a transfer has been made.

Figure 4 is a detail enlarged section of the transfer mechanism with the parts in the position which they occupy when the actuating rack has been moved to its farthest position from its home position.

very brief description of the keyboard of the machine is thought to be sufficient for the purposes of this application. A plurality of amount banks of keys are provided, together with three banks of control keys, 45 as shown and described in the co-pending application above referred to.

Each of the banks of amount keys contains nine keys 30, which are slidably mounted in a key frame 31, supported by rods 32 and 50 33, which are in turn supported by the machine side frames. The keys are normally held in their undepressed positions by means of springs 34, which co-operate with pins 35, projecting laterally from the stems of the keys. At the inner end of each of the key stems there is a laterally projecting pin 36, the function whereof will be presently described.

lVhen a key is depressed, it will be held in its depressed position during an operation of the machine by any suitable mechanism, the preferred form of mechanism being shown and described in the above mentioned application. Likewise the means for releasing the depressed keys at the end of an operation of the machine, are shown in the above mentioned application, and therefore these parts are neither shown nor described in this application, as they form no part of the present invention.

Dz'fiercntz'al mechanism.

The differential mechanism for this machine is constructed in a series of units, and as these units are identical in their construction and operation, it is thought that the description of one will ,be sufficient for all. Each of these differential units is supported by two hangers 41 (Fig. 1), which are in turn carried by two rods 42 and 43, supported by the machine side frames. Pivoted on a hub 44, supported by the hangers 41, is a segmental driver 45, which is adapted to receive an oscillatory movement, first clockwise and then counter-clockwise on every operation. A red 46 extends through all of the differential units, and ties them together, The means for giving this driver its oscillatory movement will now be described.

A crank handle (not shown) is adapted to be pulled toward the operator and then returned to its normal position on every operation of the machine. This crank handle is connected by suitable mechanism to a shaft 47 (Fig. 1). Fast on the shaft 47 is an arm 48, which carries a roller 49 projecting into a slot 50 of the driver 45. The arms 48, one for' each bank, are each provided with a plurality of holes for the supporting studs for the rollers 49. There is one roller 49 on each arm 48 and they are spaced successively from the upper end of the arm 48, in order to make the operation of the machine easier, and to provide time for successive transfers, as is well known in the art. It can be seen from Figure 1, that when the shaft 47 and arm 48 are rocked counter-clockwise, the

roller 49 will move upwardly in the slot 50. Approximately the first half of the upward movement of the roller 49 will have no effect upon the driver 45, as the lower part of the slot is formed with its edge 64 concentric with the shaft 47. As the roller continues its movement, however, it enters the upper end of the slot, and causes the driver to be rotated clockwise about the hub 44, until the roller 49 reaches its highest point in the slot. As the arm 48 continues its counterclockwise movement the roller 49 moves down the opposite side of the slot 50, thus continuing to move the driver 45 clockwise until the roller finally reaches an edge 65 which is also concentric with the shaft 47, when the driver 45 is in its farthest moved position. The driver 45 will remain, therefore, in such position during the time the roller moves along the edge 65. The operating handle is then l'Ctlll'llttl to its normal position, and the action of the roller 49 in the slot 50 will return the driver 45 to the position shown in Figure 1. These concentric edges 64 and 65 are provided because it is necessary for the arm 48 to move a greater distance than the driver 45.

Loosely mounted on the hub 44, of the driver 45, is a differentially movable disk 52. This disk is normally connected to the driver 45 (Fig. l) by a latch 54 and is, therefore, moved with this driver until the latch is disconnected therefrom, whereupon the driver 45 continues its movement leaving the differentially movable disk 52 in whatever position it had reached when the latch was disconnected. The differentially movable disk 52 has a projecting arm 53, upon which the latch mechanism is pivotally mounted. This latch mechanism consists of three members. The first of these is a twoarmed latch 54, one arm of which has a lip 55, which normally lies just above a flange 56, formed on the driver 45. It is evident from Figure 1 that with the latch 54 in the position shown in this figure, the differentially movable disk 52 will be carried in a clockwise direction upon the movement of the driver 45, due to the connection between the flange 56 and the tip 55.

As the differentially movable disk is given this clockwise movement, a forwardly projecting nose 63, of the latch 54, will come into contact with the pin 36, carried by whichever one of the keys has been depressed. The forward side of the nose 63 just misses the pins 36 on the undepressed eys, as the latch 54 is moved upwardly, thus preventing disengagement of the latch 54 from the driver 45 until said nose strikes the pin on the depressed key. \Vhen the nose G3 strikes the inner end of the depressed key, the latch 54 will be rocked counter-clockwise far enough to remove the lip 55 from above the flange 56 of the driver 45, and therefore the driver 45 will continue its movement independently of the differentially movable disk 52.

When the latch 54 is rocked counter-clockwise in this manner, an aligning arm 57 pinned to the latch 54, will come into engagement with the one of a series of notches 58, formed in a plate carried by hanger 41, corresponding to the key depressed, and will, therefore, hold the differentially movable disk firmly in its adjusted. position.

Also pivoted on the arm 53, and pinned to the latch 54 is a bell crank 59, which at its upper end carries a pin 60, adapted to co-operate with a flange 61, projecting laterally from a bar'62, supported by the hanger 41. As the differentially movable disk moves upwardly, the pin 60 will be on the outside of the flange 61', and will, therefore, prevent the latch 54 from being rocked in a clockwise direction. This bell crank 59 also has an additional function in connection with a total printing operation, but as that operation is not necessary to an understanding of the thereof will be included in this application. Reference may be had to the above mentioned parent application, for a full description of the total printing mechanism. In case no key in a bank is depressed, it is necessary to disengage the latch 54 from the flange56 in the zero position of the parts, and to accomplish this function the following mechanism is provided:

Fast on a shaft 72 (F i *1) carried by the key frame 31, is an arm 73, which at its upper end carries a pin 74. This pin normally lies in the path of the latch 54, and when the differentially movable disk is given its clockwise movement, with no key in its corresponding bank depressed, the nose 63 of the latch 54 will strike the pin 74 and rock the latch counter-clockwise, and. will thereby disconnect the differentially movable disk from the driver 45 in the zero position.

If, however, a key is depressed, a detent, (not shown) such as is well known in machines of this type, is lowered. This detent is connected through means not shown herein, but fully shown and described in the above mentioned application, to the shaft 72, and when a key is depressed and the detent mentioned is lowered, the arm 73 will be rocked counterclockwise out of the path of the latch nose 63. This will, of course, permit the differentially movable disk to be moved upwardly, so that the latch may be broken in the position corresponding to the key depressed, as is usual in machines of this type. I

iMeans are provided for returning the differentially movable disk to its zero position at the end of every operation. of the machine. This means consists of a pin 103 (Fig. 1) carried by the disk 52, and projecting into present invention, no descriptim the path of an upwardly extending arm 10%, of the driver 45. lVhen the driver 45 is returned to its normal position, its arm 101 will come into contact with the pin 103 and return. the differentially movable diskto zero.

There are three lines of totaliiers in the present machine. Only one of said lilies is shown in the detail figures, however, in this application, as the mechanism is duplicated in the other two lines, and it is believed that one will be suflicient for a clear understanding of the invention. Each of the totalizer lines carries a plurality of totaliZers. The

totalizer wheels are arranged in groups, each 4 group consisting of wheels of the same denomination. In order to select any particular totalizer, the entire totalizer line is slid longitudinally of the machine into a position in which theappropria-te wheel in each groupwill be opposite the actuator.

The totalizer wheels of each line are loosely mounted upon a shaft 111 (Figs. 1, 2, 3 and 4), which is carried by two arms 112, fast on a shaft 114, rotatably mounted in the machine side frames.

To talz'zer actuator.

is to be" effected, as will be fully described later.

The selected totalizers are moved into engagement with the racks 131 at the proper time during an operation, and the totalizer wheels are rotated by them to an extent corresponding to the amount keys depressed. It is not thought to be necessary to describe the totalizer selecting, or the totalizer engaging. mechanism in this application, as reference can be made to the above mentioned application, of which this is a division, if adetailed description of thcsedevices is desired. Y

' Transfer mechanism-.-

Mechanism is provided for transferring from lower tol'iigher denominational order. Each totalizer wheel-110 has securedthereto ,afdisk 160 (Figs. 2, 3 and 4), which has a single longtooth' projecting from its periphery in the zero position of the totalizer wheel. As additions are made, the totalizer wheels are driven in a clockwise direction, as vie-wed in these figures, and. when a Wheel passes from 9 to 0, the long tooth on disk 160 contacts an arm 161, fast on a shaft 162 supportedby the differential hanger for the differential unit of next higher order and rocks said arm and shaft counter-clockwise. Also fast on the shaft 162, and adjacent said next higher unit, is an'arm 163, which carries a pin 164, having a flattened side engaging a shoulder 165, of a slot 166 formed in a transfer lever 167. This lever is pivoted at 168 on the hanger. The arm 163 and lever 167 are pulled toward each other by spring 169. It can readily be seen from Figure 3, that when the long tooth on the disk 160 of nextlower order, rocks the arm 161, shaft 162 and arm 163 counter-clockwise, the pin 164' will be moved off of the shoulder 165, in the slot 166 of the lever 167, and this lever will be rocked clockwise by spring 169, assisted by the camming action of, the slot 166 and pin 164, until the pin 164 rests in the upper end of slot 166.

It will be recalled that the totalizer actuating racks 131 are slidably mounted on the pins 132. Pivoted on the right hand one of these pins, as seen in Figure 4, is an arm 170. A pin 171 carried by the differentially movable disk 52 projects through a slot 172 in the arm 1'70, and prevents lateral movement thereof. The rack 131 has a downwardly extending arm, which carries a pin 173 projecting through a notch 1745 111 the arm 170. The arm 170 also carries a roller 17 5, which rolls over the periphery of a ring 176, carried by studs projecting from one of the differential hangers.

Figi lre 4 shows the differential disk 52 and the actuating rack131 in their farthest position of adjustment, just before 9 is to be added to the totalizerv wheel 110. .If upon its return movement of the disk and rack to normal osit-ion, the totalizerwheel of next lower (:enomination does not pass from 9 to 0, then no transfer is to be made, the arm 163 will not be tripped, and therefore the lever 167 will not be rocked. The differentially movable disk 52 is positively moved in a counter-clockwise direction on its return movement, as will be later described, and the arm 170 is carried therewith, due to the pin 173 and the notch 174 in said arm 170. The same relative positions as shown in Fig. 4 will be maintained between the disk 52, rack 131 and arm 170 during all of this return movement, except the last step, dueto the fact that the roller 175 rolls along the periphery of the ring 176,

Asthe parts approach their zero position, the roller175 will come to a notch 177 in the ring 176. At the same time, the pin step of movement of the disk 52, the pins.

132 are moved into the left ends of the slots in the rack 131, the arm 170 is thus rocked counter-clockwise with the pin 173 as the pivot and the roller 175 enters the notch 177 in the ring 176. The parts are now in the positions shown in Fig. 2 and no transfer has been made.

WVhen, however, the totalizer wheel of next lower order passes from 9 to 0 on an adding operation, the arm 163 is tripped by the long tooth of the disk 160 and the lever 167 is rocked clockwise to the extent permitted by the slot 166 in said lever. In this case, as the differential disk 52 a)- proaches its normal position, the roller 1 5 will be prevented from entering its notch in ring 176, by the engagement of a depending foot 179'of the arm 170, with a pin 180 carried by the lever 167, as shown in Figure 3. The foot 179 of the arm 170 is so shaped that just before the roller 175 reaches the notch 177, one end of the foot 179 engages the stud 1.80. As the parts move on toward their home positions, the arm 170 is guided by the stud 180. Also, on this operation, the nose 178 on lever 167 is lowered out of the path of the pin'173 on the rack 131. The disk 52, rack 131 and arm 170, therefore, are maintained in the relative positions shown in Figure 3, until the differentially movable disk 52 reaches its home position. The rack 131 is, therefore, moved an extra step to the position shown in Figure 3, which will give an extra unit of movement to its appropriate totalizer wheel 110.

Each of the drivers 45 carries three pins 181 (Fig. 1), which project through slots 182 in the lefthand hanger 41 of the differential unit, and co-operate with the levers 167 of the next bank. On the clockwise movement of the driver 45, the pins 181 will contact the levers 167, and. restore any of these levers which had been tripped, by the previous operation, to their untripped position in which the pins 164 again engage the shoulders 165 where they are held under the influence of springs 169.

While the form of mechanism herein shown and described is admirably adapted to fulfill the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one embodiment herein disclosed, for it is susceptible of embodiment in various forms all coming within the scope of the claims which follow.

What is claimed is:

1. The combination of an' actuator movable from home to zero position and from zero. position differentially, an actuating rack, means for locking the rack to the actuator during differential movement of the actuator away from and back to zero position, and a non-yielding means for maintaining said locking means'effective to effeet a transfer asthe actuator moves from zero to home position.

tion, an accumulating element, and a nonyielding means under control of said accumulatingeelement, said means including a lateral projection adapted to be moved into the path of movement of said locking means to maintain said locking means effective to effect a transfer as the actuator moves from zero to home position.

3. The combination of an actuator movable from home to zero position and from zero position differentially, an adding rack adapted to be differentiallymoved by the actuator for adding various amounts, means for locking the rack to the actuator during differential movement of the actuator away from and back to zero position, an accumulating element, a pivoted member controlled by said element, means on said member for arresting the rack in zero position when no transfer is to take place, and means also on said member for maintaining said locking means effective as the actuator moves from zero to home position to effect a transfer. g

4. The combination of an actuator movable from home to zero position and from zero position differentially, an adding rack adapted to be differentially moved by the actuator for adding various amounts, means for locking the rack to the actuator during differential movement of the actuator away from and back tozero position, an accumulating element, a pivoted member controlled by said element, a projection on said member for unlocking the rack from the actuator in the zero. position when no transfer is to take place, and another projection on said member to maintain the lockim means effec tive as the actuator moves from zero to home position to effect a transfer.

5. The combination of an actuator movable from home to zero position and from zero position differentially, an actuating rack provided with slots, pins on said actuator engaging said slots to slidably support said rack, an arm pivoted'on one of said pins, a pivoted connection between said arm and, rack, a roller carried by said arm, and a track for said roller shaped to prevent relative movement between said rack and actuator during differential movements from and to zero and to permit relative movement between zero and home positions.

6. The combination of an actuator movable from home tozero position and from zero position differentially, an actuating rack movably mounted thereon, an arm pivoted to the actuator and rack, and a track for preventing movement of said arm as the actuator moves differentially from and to zero position and to permit movement thereof as the actuator moves between zero and home positions.

7. The combination of an actuator movable from home to zero position and from zero position differentially, an actuating rack movably mounted thereon, an arm pivoted to the actuator and rack, a track for preventing movement of said arm as the actuator moves differentially from'and to zero position and to permit movement thereof as the actuator moves between zero and home positions, an accumulating element,

and. means controlled thereby for preventing movement of said arm during the latter movement of said actuator for effecting transfers.

8. The combination of an accumulating element, an actuator movable from home to zero position and from zero position differentiallv. an actuating rack mounted thereon for relative movement thereto, a driving connection between said rack and actuator, a pivoted member controlled by said element, and means on said member operating on said connection to maintain the same effective as the actuator moves from Zero to home position to effect a transfer.

9. The combination of an accumulating element, an actuator movable from home to zero position and from zero position differentially, an actuating rack mounted thereon for movement relatively thereto, a driving connection between said rack and actuator, a pivoted member controlled by said element, means on said member operating on said connection to maintain the same effective as the actuator moves from zero to home position to efiect a transfer, and other means on said member to arrest the rack in zero position when no transfer is to take place.

10. The combination of an accumulating element, an actuator movable from home to zero position and from zero position differentially, an actuating rack mounted thereon for movement relatively thereto, a driving connection between said rack and actuator, a movable member controlled by said element, a nose on said member adapted in one position of said member to arrest the rack in zero position, and a pin also carried by said member adapted in another position of said member to maintain said driving connection effective as the actuator moves from zero to home position.

11. The combination of an actuator mo'vable from home to zero position and from zero position differentially, a rack provided with slots, pins on said actuator engaging said slots, a plate pivoted to said actuator and rack, a roller on said plate, a track for said roller to prevent relative movement between said rack and actuator as the actuator moves differentially to and from zero position and to permit relative movement as the actuator moves between zero and home positions, an accumulating element, a pivoted arm controlled by said element, means on said arm for arresting said rack in zero position, and other means on said arm cooperable with said plate to carry the rack from zero to home position to effect a transfer.

12. The combination of a differentially movable actuator movable beyond zero position to effect transfers, a rack slidably supported thereby, a link connecting said rack and actuator, a guide controlling said link to hold the rack and actuator relatively immovable during the differential movement of the actuator, and another guide for controlling said link to hold the rack and actuator relatively immovable during movement of the actuator from zero to home positions to effect transfers.

13. The combination of a differentially movable actuator movable beyond zero position to effect transfers, a rack slidably supported thereby, a link connecting said rack and actuator having a projecting foot, a fixed guide controlling said link to hold the rack and actuator relatively immovable during the differential movement of the actuator, a pivoted guide adapted to cooperate with said foot to control said link to hold the rack and actuator relatively immovable during movement of the actuator from zero to home positions to effect transfers, and a totalizer element for controlling said pivoted guide.

14. In a machine of the class described, the combination of a differentially movable member, a segmental actuating rack carried thereby, an arm pivoted to said differentially movable member, a slot and pin connection between said arm and said rack, and a stop adapted to be interposed in the path of said pin to stop said rack at a certain point in its operation.

15. In a machine of the class described, the combination of a differentially movable member, a segmental actuating rack carried thereby, an arm pivoted to said differentially movable member, a slot and pin connection between said arm and said rack, a stop adapted to be interposed in the path of said pin to stop said actuator at a certain point in its operation, and means permitting said arm to rock about said pin to permit said differentially movable member to be moved to a greater extent than said rack.

16. In a machine of the class described, the combination of a differentially movable member, a segmental actuating rack carried thereby, an arm pivoted to said differentially movable member, a slot and pin connection between said arm and said rack, a stop adapted to be interposed in the path of said pin to stop said actuator at a certain point in its operation, and a circular plate adapted to cooperate with said arm to cause the rack to be moved the same extent as the differentially movable member during a portion of the movement of said member.

17. In a machine of the class described,

the combination of a differentially movable member, a segmental actuating rack carried thereby, an arm pivoted to said differentially movable member, a slot and pin connection between said arm and said rack, a stop adapted to be interposed in the path of said pin to stop said actuator at a certain point in its operation, a roller mounted on said arm, and a circular plate haying a cutaway portion therein adapted to cooperate with said roller to permit the differentially movable member to be moved to a greater extent than said rack.

18. In a machine of the class described, the combination of a differentially movable member, a segmental actuating rack carried thereby, an arm pivoted to said differentially movable member, a slot and pin connection between said arm and said rack, a stop adapted to be interposed in the path of said pin to stop said actuator at a certain point in its operation, a roller mounted on said arm, a permanently fixed circular plate upon the periphery of which said roller moves, and a recessed portion in said plate for receiving said roller and permitting the differentially movable member to be moved to a greater extent than said rack.

19. In a machine of the class described, the combination of a differentially movable member, a segmental actuating rack carried thereby, an arm pivoted to said differentially movable member, a slot and pin connection between said arm and said rack, a stop normally in the path of said pinto stop said actuator at a certain point in its operation, a roller mounted on said arm, a permanently fixed circular plate upon the periphcry of which said roller moves, a cut-away portion in said plate for receiving said roller and permitting the differentially movable member to be moved to a greater extent than said rack, and means on said stop member operable when the stop member is in non-operative position for preventing said roller from moving into said cut-away portion in order to cause said rack to be moved to the full extent of said differentially movable member.

20. In a machine of the class described, the combination of a differentially movable member, a segmental actuating rack carried thereby, a totalizer element in mesh with said rac'k, a disk secured to said totalizer wheel and having a long tooth on its periphery, an arm adapted to cooperate with said long tooth, another arm pivoted to said differentially movable member, a slot and pin connection between said actuating rack and said last mentioned arm, and a stop arm under control of said long tooth for normally stopping said rack while permitting said differentially movable member to move to a greater extent.

21. The combination of an actuator movable from home to zero position and from zero position differentially, an adding rack adapted to be differentially moved by the actuator for adding various amounts, means for locking the rack to the actuator during differential movement of the actuator away from and back to zero position, an element to maintain the locking means effective during said differential movement, and a pivoted stop adapted to control the locking means to unlock the rack from the actuator and hold the rack in zero position when no transfer is to take place, said element adapted to permit the locking means to move to its unlocking position.

22. The combination of an actuator movable from home to zero position and from zero position differentially, an adding rack adapted to be differentially moved by the actuator for adding various amounts, means for locking the rack to the actuator during differential movement of the actuator away from and back to zero position, an element to maintain the locking means effective during said movement, a pivoted stop, and means carried by said rack adapted to engage said stop to control the locking means to unlock the rack from the actuator and hold the rack in zero position when no transfer is to take place, said element adapted to permit the locking means to move to its unlocking position.

23. In a machine of the class described, the combination of a differentially movable member, an actuating rack carried thereby and having a projection, an arm pivoted to said member and having a slot engaging the projection on the rack, said arm also having a foot, and adjustable means adapted in one position of adjustment to cooperate with said foot and in another position to cooperate with said projection.

24. In a machine of the class described, the combination of an actuating rack provided with an arm, a differentially movable member for supporting said rack and adapted to be moved relative thereto, a device pivoted to said member and connected to said rack arm, said device having a foot, and adjustable means adapted in one position of' adjustment to cooperate with said foot to prevent relative movement between the rack and the member and in another position of adjust ment to cooperate with said rack arm to permit relative movement between the rack and the member.

In testimony whereof I affix my signature.

SAMUEL BRAND. 

